With the rising demand of non-linear type equipment and loads, mitigation of harmonics becomes increasingly important. If a harmonics study or testing indicates excessive harmonic levels or a ...

[Editor's Note: The need for controlling the level of harmonic current in power distribution systems is widely recognized as an important factor in selecting and applying adjustable-speed drives (AFDs ...

NEW BERLIN, Wis. - "If you claimed that the sole purpose of a variable speed motor drive was to increase energy efficiency, it would be no exaggeration, of course," said Mike Olson, HVAC sales manager ...

Rectifier systems play a critical role in the conversion of alternating current (AC) to direct current (DC) in a variety of applications including industrial drives, renewable energy integration, and ...

This article is part of a multi-part series on how to identify, monitor, diagnose, and deal with harmonics in electrical power systems. Last month’s column discussed how to take the data gathered when ...